Internal-combustion engine



7 J J. REINHOLD INTERNAL COMBUSTION ENGINE Filed Nov. 1 1. 1921 INVENTOR ATTORNEY W a gwmge i JOHN J. REENHOLD, E MAEIETTA, EENNSYL J'ANIA.

INTERNAL-COliIBUSTIiON ENGINE.

Application filed November 14, 1921. Serial No. 514,977.

To all whom it 07mg concern Be it known that 1, JOHN J. RnINiioLD, a

citizen of the United States, and a resident inders are connected to a i-tnnmon manifold which supplies the fuel.

,The object of this invention is to provide means whereby high eiiiciency can be maintained throughout the lite oi? the or Pin other words to provide means whereby a practical perfect fuel mixture is obtained in each cylinder under changing conditions.

This invention will be more fully understood by taking into consideration the following; conditions which exists at various periods-during the life of an auton obile en gine:ll hen the engine is new the piston and piston rings fit properly, and the manifold and rarburcttcr opo-rtions are correct to suit hese conditions. the engine has great power and runs smooth; but, when the pie-- tons and piston wear and become 30 leaky, oil from the crank caseenters the combus ion chamber. and the eliciency of the engine is reduced, unlessadjustment is made to th 'CZLLlJUIQt-lQY.

It is obvious that all the pistonscn a multiple cylinder engine will not wear at the same rate, therefore all the cylinders will not receive the same quantity of oil from the crank caseand the carburetter cannot be adjusted'to accommodate this con dition in all the cylinders. The result is that all the cylinders will not operate at their highest eiiiciency.

To correct the fuel mixture I provide an automatic inlet valve which permits air or some other tempering fluid to enter directly into the combustion chamber of each cylinder, and also means whereby the quantity of air or tempering fluid which enters each cylinder may be regulated; and further I provide means whereby the combustion of the fuel can be observed. With this combination the fuel mixture of each cylinder can be controlled and regulated whereby complete combustion of the fuel takes place.

Fig. 1, represents a longitudinal sectional view of a device which discloses one form of my invention.

Fig. 2, represents an internal co engine with devices like shown in ii tachcd thereto.

1 indicates a sectional view oi a portion of one of the cylinders 30 of an internal combustion engine 31, the same being provided with a hole 2 which leads dircct-ly to the combustion chamber of the engine. 3 is a valve casing which is screwed into the threaded portion e of the hole The casing carries hexagon shaped portion 5 to iit a wrench.

Formed in the casino 3 is a valve chamber 6 and a valve 9, which, is free to slide and adapted to close the valve seat 7 through the valve head Forming part of the valve 9 and the valve head 10 is a valve stem 17, the same being provided with a hole 11 throughout its entire length as shown.

To the end of the valve stem 17 is screwed the cap 14 which clampsa glass dish 15 over the hole 11. and thereby closing the same. hole 16 is provided in the cap Li. 7

it is apparent that vision may he had to the combustion ot the fuel by lOOl-Tlllg' through the hole 16. glass disk 15, hole 11, alve chamber 6 and hole 2 into the combustion chamber.

The valve head 10 is normally held against the valve seat 7 through the urine 18, set collar and valve it the set collar 19 being alter-ably lined to the valve stem 1? through the set screw 20. It is obvious that adjustment may be made to the spring pressure by shifting the set collar 19 on the valve stem 17.

The casing 3 is provided with an extension 21, having openings 22 for ventilating the spring 18 so that it does not get hot enough to anneal from the heat of the engine. Screwedinto the case extension 21 is a valve stem guide 23 which also acts as a stop for the valve movement when the nut 24 comes in contact therewith.

In the upper end of the casing 3 is a chamber 25 which communicates with the bore 8, and from which leads the pipe 26. The valve 9 is provided with openings 27 which form communication between the chamber 25 and the chamber 6 when the valve is open as shown.

The operation of this device is as fol lows:

lllt) For illustration assume that a device of the kind as represented in Fig. l, is placed on each of the cylinders of a two cylinder engine 31; and a single carburettor 32 regulates the "fuel mixture which enters a manitold 38 which connects with the inlet ports of both cylinders.

This device on both cylinders is first made inoperative by turning down the nut 2%, thereby drawing the valve head 10 tight on the valve seat 1". The engine is now started and the carburettor adjusted in the usual manner to a point where the best results are obtaineijl. Now an observation if made to dete'mine in which oi the two cylinders complete combustion is obtained; this may readily be determined by the color of the flame, for instance a red thune indicating incomplete combustion and a blue tlame indicating col plots comiustion. it is probable that the cylinder with the red llaine is getting the most oil from the crank case.

Now the obect is to temper the mixture in the conibustion chamber of the cylinder,

with the red flame, this is accomplished by releasing the nut- .Z l and thereby permitting the valve 9 to be drawn open by the vacuum in the combustion chamber during each suction stroke. When the valve 9 is open, air is drawn into the combustion chamber through the pipe 26, chamber 25, openings 27, chamber (3 and hole 2, thereby reducing the vacuum and cutting down the quantity of fuel mixture drawn from the manifold.

T he quantity of air drawn through the opening 27 may be regulated by controlling the amount of movement of the valve 9; for

instance, the area of the oriiice of the opening 27 will be more or less depending upon the amount or movement Oii the valve 9 this ,will be apparent by referring to the drawand it the valve is moved further down the opening will be greater, or vice versa.

The extent to'which the valve 9 can open may be regulated by adjusting the nuts 24 and 529 on the valve stem 17.

It at any time it is desired to put this device in inoperative condition without disturbing the nuts'Q l and 29, the same may be accomplished by unscrewing the valve stem guide until the same raises sutiici ently tobear against the nut 24: and pulls the valve head 10 hard on the valve seatT, under which condition no ail-can enter or leave the combustion chamber through this device. i

it is obvious that the pipe 26, instead of being open to the air, might be connected to the top of the radiator chamber where it will such water vapor or steam aswell as air, or it ay be connected to a reservoir of some other kind o'l' tempering fluidf It is to he understood that this invention is not limited to any specific construction as it is obvious that numerous modifications might be made without changing the nature and scope of this invention;

Having thus described my invention, what I claim amldesire to secure by United States Letters Patent is as follows: 7

The combination with aninternal combustion engine having more than one cylinder, of a fuel supply for the cylinders, a inanifold for conducting the fuel supply to two or more cylinders,-means tor admit-ting directly in each cylinder a temperin fluid to bring the fuel mixture to a practical perfect state, means for independently controlling the quantity of said tempering fluid which enters each cylinder, and means provided whereby combustion of the fuel is visible. In testimony whereof I allix my signature.

JOHN J. REINHOLD. 

